Memdex
Turn every AI conversation into reusable local memory
Memdex launched on May 23, 2026 with 276 votes, #82 of 20,538 launches that month and more than 99% of that year's launches.
In plain words
Memdex is a Chrome extension that automatically captures and stores conversations from ChatGPT, Claude, and Gemini in encrypted local storage on the user's laptop. It identifies reusable context from past chats and highlights relevant information in new prompts, allowing users to inject it with a single click. The tool is designed for anyone who wants to retain and reuse information across multiple AI conversations without uploading data to external servers. A free version covers the 10 most recent chats, with a paid plan for unlimited access.
written from the facts on this page · September 2026
From the sources
Memdex is a Chrome extension that turns every AI conversation into reusable memory. It auto-captures your chats across ChatGPT, Claude, and Gemini, stores them encrypted on your laptop (IndexedDB, never uploaded), and underlines reusable context in your next prompt like Grammarly underlines typos. One click to inject when you need it just like grammarly. Free for your 10 most recent chats. Pro for unlimited.
Memdex auto-saves your AI conversations across ChatGPT, Claude, and Gemini. Find and reuse context from past chats — 100% local storage.
Does a similar job
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Mem0 Browser Extension: Shared Memory Across ChatGPT,Claude,Perplexity2024 · github.com · ▲34Hey HN! We're Deshraj and Taranjeet. We've been building working on a startup called Mem0, building an open-source memory layer for AI apps and agents (https://news.ycombinator.com/item?id=41447317). We also kept running into our own daily frustrations with AI assistants forgetting everything between conversations. Over a weekend, we decided to hack together a Chrome extension to solve this for ourselves. The problem was simple: we were constantly re-explaining our context across platforms when switching between ChatGPT, Claude, and Perplexity. Start a coding discussion in…
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